To multiply, just add with the help of lines and dots. Japanese people learn this way at school.
A multiplication method used in Japan is going viral because it is so simple and fun, making multiplication a much more accessible, engaging and attractive game of counting points until you reach the answer.
The method is taught in Japanese schools and is making many X users: “Why didn’t they ever teach us this at school?”.
The trick works as follows: in the case of a multiplication, parallel lines are drawn to represent one set of digits (say, vertically), while another set of parallel lines is drawn to represent the second set of digits involved in the operation (horizontally, and therefore above the vertical lines already drawn previously).
The intersection points of these lines are then counted in their specific sections, which correspond to the final answer.
When multiplying two numbers, the leftmost section represents the smallest place value, while the rightmost section corresponds to the largest. Each intersection effectively represents a part of the calculation.
It’s simpler when you see it on video:
Why wasn’t this taught in school⁉️
Yet another glimpse at the cage we (were) all in…
-NewsWithoutLies-
— Tina Zimmermann (@TinaZimmermann4)
This method can be extended to more complex problems, although it may be necessary to divide the diagram into several sections for clarity. Despite its advantages, the method does not, of course, eliminate the need for basic arithmetic principles, such as carrying digits in more complex problems.
@mathswithmisschang Who uses Japanese multiplication?! 🤩 #maths #easymaths #fyp #foryoupage #learnontiktok #school #gcse #teacher #multiplication ♬ ROCKSTAR – DaBaby, Roddy Ricch
